If it is more of a chip or a hole they have fiberglass repair kits at Home Depot $15.00, they are easy to use(instructions) and work well(avoid getting the ingredients on your skin).If it is
actually a long or growing crack,
I think you are looking at a new tub.
Originally posted by alioop:
I have a crack on the bottom of my bathtub close to the drain, How do I fix it?